Polarimeters measure the optical activity of a substance. This is done by passing polarized light through a substance and observing the angle of light emitted. Optically active substances will rotate the polarized light while non-optically active substances will have an angle of 0°. This technique was developed to identify and study enantiomers which share many chemical properties typically used to distinguish one molecule from another, but that can have significant effects in chemistry experiments, pharmaceuticals, and food quality. While the original polarimeters required manual adjustments to obtain a reading, today's digital polarimeters perform readings automatically and give instantaneous results.
|  |  |  |
| Company | Rudolph Research Analytical | Rudolph Research Analytical | Rudolph Research Analytical |
| Item | AUTOPOL I Polarimeter | AUTOPOL III Automatic Polarimeter | AUTOPOL V Automatic Polarimeter |
| Catalog Number | Inquire | Inquire | Inquire |
| Price | | | |
| Description | The AUTOPOL I is Rudolph's most economical automatic polarimeter designed for education and less demanding applications where the budget is critical, but quality is still important.
Quality
Rudolph manufactures its entry-level polarimeter with the same high quality optics as its more expensive The AUTOPOL I is Rudolph's most economical automatic polarimeter designed for education and less demanding applications where the budget is critical, but quality is still important.
Quality
Rudolph manufactures its entry-level polarimeter with the same high quality optics as its more expensive instruments. While other manufacturers in this price range use Polaroid Plastic Dichroic Sheet Polarizers, Rudolph does not. Instead, Rudolph uses the same high quality Glan Thompson Calcite Polarizers used in its high accuracy models.Why are high quality polarizing prisms important? Because prisms are two of the most critical optical components in the polarimeter. Polaroid prisms are made of a polymeric plastic where the molecules are stretched and oriented in a specific direction so as to linearly polarize light. These types of plastic sheet polarizers are very inexpensive and are vulnerable to heat, warp over time, deteriorate from moisture, and also have greater light absorption than Calcite Polarizers. In many cases, the plastic polarizers must be replaced in 3 - 5 years. Glan Thompson Calcite Polarizers are comprised of a carbon crystalline structure similar to diamond and have excellent light transmission characteristics. The quality of these prisms is so good, Rudolph guarantees its prisms over the life of the polarimeter.
Temperature
The Autopol I comes with a Temperature Probe so that sample temperature can be displayed and printed. However, if your product requires Temperature Control, then the Autopol I will most likely not be accurate enough for this type of sample, as is the case for 98% of pharmaceutical applications where a Certificate of Analysis must be issued.... Read More | The AUTOPOL III Automatic Polarimeter is Rudolph's entry level Dual Wavelength Pharmaceutical and Research grade polarimeter offering accuracy similar to Rudolph's more advanced models, but with a simplified interface. Just place your cell in the sample chamber, press the large red Measure Key and The AUTOPOL III Automatic Polarimeter is Rudolph's entry level Dual Wavelength Pharmaceutical and Research grade polarimeter offering accuracy similar to Rudolph's more advanced models, but with a simplified interface. Just place your cell in the sample chamber, press the large red Measure Key and get 5 results in less than 25 seconds. It's that easy.
The Autopol III's Temperature Probe is covered with a micron thick glass coating to stand up to high molar Hydrochloric Acids used by some pharmaceutical labs.
A cGLP/GMP compliant printout, which includes the temperature of the sample is generated by pressing the Print/Send Key after the measurement is finished.... Read More | The AUTOPOL V Automatic Polarimeter is designed for today's FDA regulated analytical laboratories. Whether you are a Pharmaceutical, Nutraceutical or University Lab, the AUTOPOL V has the standard features you must have, including: - TempTrol™ - Electronic cooling and heating from 15°-30°C
The AUTOPOL V Automatic Polarimeter is designed for today's FDA regulated analytical laboratories. Whether you are a Pharmaceutical, Nutraceutical or University Lab, the AUTOPOL V has the standard features you must have, including: - TempTrol™ - Electronic cooling and heating from 15°-30°C
- 21CFR Part 11 Compliance: Electronic signature and secure local data storage
- Six Standard Wavelengths: 365nm, 405nm, 436nm, 546nm, 589nm, 633nm
- 3-year domestic warranty and 20-year support guarantee
... Read More |
| Measurement Mode(s) | Optical Rotation, Specific Rotation, Specfic Rotation Plus Concentration, User Defined Scale, °Z Sugar Degrees | Optical Rotation, Specific Rotation, Specfic Rotation Plus Concentration, User Defined Scale, °Z Sugar Degrees | Optical Rotation, Specific Rotation, Specfic Rotation Plus Concentration, User Defined Scale, °Z Sugar Degrees |
| Measuring Range | +/-89° (Arc Optical Rotation), +/-999.99° (Arc Specific Rotation) and 0 to 99.9% (Concentration) | +/-89° (Arc Optical Rotation), +/-999.99° (Arc Specific Rotation) and 0 to 99.9% (Concentration) | +/-89° (Arc Optical Rotation), +/-999.99° (Arc Specific Rotation) and 0 to 99.9% (Concentration) |
| Accuracy | 0.01° Arc Optical Rotation or 0.03°Z (ISS) Sugar Degrees | 0.002° Arc up to 1°, 0.2% above 1°, and 0.01°Z | 0.002° up to 1°, 0.2% up to 5° and 0.01° above 5° |
| Measurement Wavelength | 589 nm | 589 or 546 nm | 365 nm, 405 nm, 436 nm, 546 nm, 589 nm, 633 nm |
| Get Quote | | | |